DM&P Group DMP EB-3360-852, User Manual, Page: 40 / 48

EBOX-336x Series User Manual
DMP Electronics Inc. 40
For 8-bit GPIO version with RS-232 port:
J12 (COM1): GPIO P4, 9-pin D-sub connector
Pin # Signal Name Pin # Signal Name
1 PORT 40 2 PORT 44
3 PORT 41 4 PORT 45
5 GND 6 PORT 46
7 PORT 42 8 PORT 47
9 PORT 43 - - - -
J13 (COM2): GPIO P5, 9-pin D-Sub connector
Pin # Signal Name Pin # Signal Name
1 PORT 50 2 PORT 54
3 PORT 51 4 PORT 55
5 GND 6 PORT 56
7 PORT 52 8 PORT 57
9 PORT 53 - - - -
J14 (COM3), J15 (COM4): RS-232, 9-pin D-Sub connector
Pin # Signal Name Pin # Signal Name
1 DCD 2 RXD
3 TXD 4 DTR
5 GND 6 DSR
7 RTS 8 CTS
9 RI - - - -